SPECIFIC FEATURES OF SPECTRAL PROPERTIES OF THREE-DIMENSIONAL REFLECTION HOLOGRAMS OF DIFFUSE OBJECTS
E. F. Pen
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Keywords: оптическая голография, объёмные отражательные решётки, брэгговская дифракция, фотополимеры, optical holography, three-dimensional reflection gratings, Bragg diffraction, photopolymers
Abstract
Specific features of spectral properties of three-dimensional reflection holograms are determined, namely, widening of the spectral response (reflex) contour toward both the short-wave and long-wave spectral ranges in the case where the angle of incidence of the white-light probing beam differs from the direction of reference wave propagation in hologram recording. This effect is essentially different from the known angular dependence of the reflex of the elementary three-dimensional reflection grating. A theoretical explanation for experimental data is provided, and formulas are derived, which are used to calculate the transmission spectra of the studied gratings. These spectra are found to be qualitatively consistent with the experiment.
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